The imaging footprint for DR7, which includes SDSS-I and SDSS-II (Legacy and SEGUE). There are two strips for each location since the CCDs have gaps between them, requiring a second offset strip for complete coverage.
Footprint on Aitoff all-sky projection, in equatorial coordinates.
Footprint on Aitoff all-sky projection, in galactic coordinates.
North and South galactic hemispheres shown as circles, with contours of dust absorption. Superposed are the stripes of the SDSS-I
A low-resolution depiction of the sdss footprint, with bright constellation stars shown. Note Ursa Major and Bootes.